baber/WOPTO huggingface dataset:
Patent GB-534036-A (GB)
Title: Improvements in radio direction finding systems
IPC: G01S3/42
Filed: 1939-08-23
Abstract: 534,036. Directive wireless signalling. GUANELLA, G. Aug. 23, 1939, No. 24317. Convention date, Aug. 23, 1938. [Class 40 (v)] [Also in Group XXXV] In a direct-reading radio-compass, the signal received on one fixed frame area A<SP>1</SP> is fed in pushpull, and that from a second frame aerial A<SP>2</SP> (at right-angles to A') in parallel to a balanced modulator 10, 11, the direct-current output from which is proportional to the phasedifference between the two signal currents, and so represents the deviation of the frame A<SP>1</SP> from the critical minimum. The " sense of the output depends upon the reversal of phase which occurs at the critical minimum point. This D.C. component is fed to a zero-centre indicator Z ; and also to an automatic steering-device St through a polarized relay P. Automatic volume control is derived from the frame aerial A2, and is applied to both amplifiers V <SP>1</SP>, V<SP>2</SP> ; the pick-up from A<SP>2</SP> is thus maintained at constant strength, whilst that from A<SP>1</SP> varies with the latter's orientation. The effect of " lateral " interference is reduced, and provision is made for correcting for false minima due to the second frame aerial A<SP>2</SP>. In a modified arrangement the incoming signals are first heterodyned before being fed to a balanced-bridge modulator. The resulting D.C. component may be used to rotate the aerial system through a follow-up motor so as to keep it constantly head-on to the distant transmitter. In Fig. 3, A<SP>1</SP> ... A<SP>6</SP> represent fixed aerials tapped on to a toroidal coil W, the signals being taken off by sliding contacts S<SP>1</SP>, S<SP>2</SP> to the amplifier El, and by contacts S3, S4 to the amplifier E2. The contacts are adjusted to the critical minimum or bearing- line. The signals received from both pairs of contacts are combined with the output from a low-frequency oscillator LO in a balanced modulator M. The D.C. output is fed through a low-pass filter L to the indicator Z, whilst the L.F. component is passed through a high-pass filter H to the coil q<SP>1</SP> of an automatic steering device K, T, the second coil q<SP>2</SP> being fed with a component from the low frequency source LO. The motor K acts to maintain the sliding contacts S in the " homing " position. A switch F allows the output from the amplifier V<SP>1</SP> to be applied to the lower side of the modulator M in order to resolve the 90 degrees ambiguity. The input aerial may be of the Adcock type, so as to eliminate night-effect.
Patent GB-735830-A (GB)
Title: Fittings for sliding calipers
IPC: G01B3/20
Filed: 1953-09-03
Abstract: 735,830. Linear dimension gauge. HEINRICH, G. E. Sept. 3, 1953 [Sept. 6, 1952], No. 24366/53. Class 106 (2). An attachment for extending the effective length of the legs of a sliding caliper gauge (in order to gauge the bottom of a bore for example) has an extension piece 5 into which the leg 3 of the gauge slides and is held to the leg by a screw which can also serve as a work contacting member or feeler 11. The fitting is tapped for other feelers of different sizes, one being shown at 10.
Patent GB-963163-A (GB)
Title: Switching device for power supplies
Inventor: HIRST HENRY
IPC: H02J9/04
Filed: 1962-06-25
Abstract: 963,163. Standby supply systems. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 29, 1963 [June 25, 1962], No. 24396/62. Heading H2H. A load connected to bus-bars C is normally fed from an alternating current supply A over a contactor 23 and is provided with a standby supply B associated with a contactor 27. When the main supply A is normal and a main switch 30 closed, winding 19 of transductor 18 is energized to put the transductor into its low impedance state, the energizing coil 22 then receiving sufficient current to close contactor 23. The windings 11, 12, 10 are also energized to saturate the transductor 10 so that no coupling exists between windings 13, 15 and thus the energizing coil 26 of contactor 27 remains unenergized. Should there be a failure of power on any of the phases of supply A the contactor 23 drops out due to the energizing coil 22 becoming de-energized either directly of because the transductor 18 assumes its high impedance state. Either or both of windings 11, 12 becomes de-energized so that the transductor 10 becomes unsaturated to permit coupling between windings 13, 15 thereby energizing coil 26 to close contactor 27. The transductors 24, 25 are provided to introduce delays in the energizations of coils 22, 26 respectively of the transductors 23, 27. Winding 29 on transductor 25 is provided to prevent energization of coil 26 unless all three phases of supply B are energized. The delays introduced by transductors 24, 25 may be chosen to allow the supply to revert to the source A should that source be restored or not as desired.
Patent GB-664320-A (GB)
Title: An improved process for chilling coconuts to solidify and preserve their contents
IPC: A23L25/00
Filed: 1949-09-22
Abstract: 664,320. Preserving coconuts. YEO, N. S. Sept. 22, 1949, No. 24404/49. Class 49. The liquid contents and flesh of coconuts are preserved and rendered more palatable by removing the greater part of the husk from each nut and then storing the nuts at temperatures low enough to solidify the liquid contents. All the husk except a layer “ inch thick may be removed and the nuts may then be chilled, e.g. under water, to a temperature below 15‹ F. maintained for at least 20 hours.
Patent GB-1150452-A (GB)
Title: Improvements in or relating to Hydraulic Actuators and Control Systems therefor
Inventor: FRY JEREMY JOSEPH
IPC: F15B11/048
Filed: 1965-06-09
Abstract: 1,150,452. Hydraulic control circuits. ROTORK ENG. CO. Ltd. Sept. 7, 1966 [June 9, 1965], No.24433/65. Heading F1P. [Also in Division F2] The speed of a double acting hydraulic piston 22, Fig. 6, is reduced near either end of its stroke by movement of connected axially sliding spools 11, 14 of a main control valve 10 and speed control valve 15 and which is effected when one or other of connected cams 44, 45 are rocked by a link 49, connecting said cams to the rod 23 of piston 22 so as to abut, one or other of rollers 48, 47 to swing a bell crank 46 about its fixed pivot 50a to displace an extension 43, 12 of spools 11, 14; the initial positioning of spools 11, 14, being effected by a two-portion pilot valve 16 the spool 17 of which is positioned either by a manual handle 6 and cam 58 abutting an extension 18 of the spool 17 by remote control of solenoids 55 and 56. As shown piston 22 is held at its forward end position by pressure from a supply line 26 being admitted to opposite sides of the piston through main valve 10 and line 19 and through line 39, valve 16, lines 40, 34, valve 15 a restricted line 28 and a line 20. To initiate the inward stroke of piston 22 handle 6 is moved to the position shown in Fig. 2 resulting in the spool 17 of pilot valve 16 being moved to its other position in which it connects both ends of speed control valve 15 to a return reservoir 27 to allow the connected spools 11, 14 to be moved to the right by a spring 57. In this position of spools 11, 14 the R.H. side of piston 22 is connected to reservoir whilst the L. H. side is connected through line 19, valve 10 and line 24 to the pressure line 26. As the inward stroke of piston 22 proceeds, cams 44, 45 which are adjustably secured together are rocked clockwise about their common axis until near the end of the piston stroke the nose of cam 44 abuts roller 48 to move extension 43 to the left as shown, Fig. 3, and to which the bell crank is pivotally secured at 50. Valve 10 continues to pass pressure fluid to the LHS. of piston 22 but blocks exhaust from RHS. which is relieved through restricted line 29, valve 15 lines 35, 40 and 41. To initiate the outward stroke of piston 22 handle 6 is moved to its R. H. position, Fig. 4 (not shown), resulting in pilot valve spool 17 being moved so as to direct pressure fluid along lines 40, 34 to move spool 14 and hence spool 11 whereby valve 10 directs pressure fluid from line 26 through line 20 to the R. H. S. of piston 22. As piston rod 23 extends outwardly of cylinder 21, cams 44, 45 rotate anti-clockwise until near the end of the stroke cam 45 moves roller 47, Fig. 5 (not shown), to rock lever 26 and move extension 43, 12 and connected spools 11, 14 to the position shown in Fig. 6. Cams 44, 45 are linked at 64 to a rod 51 having a cam 52 which actuate limit switches 53, 54 to de-energize the remotely controlled solenoids 55, 56.
Patent GB-1456322-A (GB)
Title: Hydraulic switches
IPC: F16K31/08
Filed: 1974-06-03
Abstract: 1456322 Valves LES PRODUITS ASSOCIES LPA SA 3 June 1974 [20 July 1973] 24442/74 Heading F2V  A dispensing nozzle for buccal washing adapted to be held and operated in one hand includes a valve comprising an inlet 2, an outlet 5 and a magnetizable closure member 7 normally spring-biased to the open position as shown in Fig. 1, but movable to the closed position by the displacement of an annular permanent magnet 13 towards the closure member such that the force of attraction between the two overcomes the bias of the spring. In such a way a quick opening and closing of the valve is obtained. The magnet is preferably of barium ferrite. A chamber 4 between inlet and outlet is provided with a floating piston 20 which absorbs any shocks which occur when the valve is closed. The valve closure member may be made of magnetic material and the magnet 13 replaced by a ring of magnetizable material. The nozzle 6 is detachable.
Patent GB-338136-A (GB)
Title: Improvements relating to delivery apparatus for lithographic machines
IPC: B65H29/10
Filed: 1929-08-09
Abstract: 338,136. Hamak, J. Aug. 9, 1929. Delivery apparatus. - Sheets are delivered printed side up from the impression cylinder 15 .of a flat-bed lithographic printing-machine by suction nozzles 16 on a reciprocating carriage 17, the nozzles 16 being carried by a horizontal tube which is adjustable, as for example along a sector, according to the width of the sheets being printed so as to engage the rear edges thereof. The suction is applied when the cylinder 15 is in the position as shown, the subsequent motion of the cylinder 15 causing the carriage 17, through gearing driving an endless chain 18, to reciprocate along a fixed guide 11 and deposit the sheet on the pile table. A small roller 20 holds the sheet against the cylinder 15 while the nozzles are drawing it off.
Patent GB-807110-A (GB)
Title: Improvements relating to kitchen furniture
Inventor: DROY HAROLD ERNEST
IPC: A47B77/02
Filed: 1956-08-10
Abstract: 807,110. Cabinets. VONO Ltd. July 26, 1957 [Aug. 10, 1956], No. 24489/56. Class 52(1). Vertical filler strips to hide the gaps between adjacent sections of kitchen cabinets consist of two parts 15 16 secured respectively to the end walls 22 of the cabinets and having a slidable tongue and groove engagement 18, 19 preferably hidden by an integral beading 20.
Patent GB-240013-A (GB)
Title: Improvements in weighing machines
IPC: G01G1/26
Filed: 1924-10-15
Abstract: 240,013. Dopp Maschinen-und Waagenfabrik Akt.-Ges. Geb., and Dopp, F. Oct. 15,1924. Loose-weight apparatus.-Relates to a weighing-machine of the type in which two or more sets of weights are hung from fixed points on a system of weigh-beams, the sets being adapted to weigh in different units or to cover different ranges of weight, and consists in forming all the weights of the same magnitude and in providing a pendulum weight adapted to counterbalance one range of weight. As shown, the invention is applied to a decimal weighing-machine and comprises a weigh-beam 2 pivoted on a knife-edge 4 and connected to the load-pan by a draw-rod 1. Two sets of equal weights 17, 17<1> carried by supports 6. 15 are suspended from the beam 2, the one directly and the other through a reduction lever 10, the arrangement being such that each of the weights 17 counterbalances ten times the load counterbalanced by each weight 17<1>. Lifting collars 18 are provided for putting the weights into and out of action, in known manner. A pendulous lever 19, provided with an index 26 registering with a chart 27 is coupled to the beam 2 to counterbalance the units of the load.
Patent GB-327933-A (GB)
Title: Improved process of manufacturing cylindrical stepped open shells
IPC: B21D51/10
Filed: 1929-08-12
Abstract: 327,933. Brewer, G., (Krupp Akt.-Ges., F.). Aug. 12, 1929. Hollow-ware. - A blank bent to a cone with welded seam and flange a<1> is formed into a stepped cylindrical shell, e.g. stainless steel body of a milk can, by drawing only, by a series of punches the first punch having a tapered end D to fit the shell only and a larger cylindrical part D<2> to draw the part a<2>. In Fig. 4 a second punch with cylindrical part E<1> draws the part a<4> to a cylinder. This may also be done by 3 rolls F spread apart by adjustable cones H, J on a rotatable shaft K all acting to roll the metal to the shape of the mould M.
Patent GB-498870-A (GB)
Title: Process of colour photographic development
IPC: G03C7/413
Filed: 1937-05-10
Abstract: 498,870. Colour photography. KODAK, Ltd. May 10, 1937, No. 24630/38. Convention date, May 9, 1936. Divided out of 500,826. [Class 98 (iii)] In a process of three-colour photography in which three colour-record silver salt images on a single support are processed to different colours, one of the records is converted into a dye image with a developing solution containing alkali, little or no sulphite, and a developing agent which forms a substituted lignone dye on development, the silver being subsequently removed without removing the dye. Two or more images may be so converted. The developing agent may be a phenol with both o-positions occupied by not readily oxidizable groups and with the p-position free or occupied by a readily displaceable group, a p-p-dihydroxy diphenyl with the o-positions occupied by not readily oxidizable . groups, or alpha-naphthols or their homologues having the 2- or 4 - position occupied by not, readily oxidizable groups and the 4- or 2- position free or occupied by a readily displaceable group. As examples, pyrogallol dimethyl ether, hydrocoerulignone, vic-mxylenol, o : o-dichlor, dibrom-, or di-iodophenol, tri-iodophenol, the monoalkyl ethers of 1:2- and 1: 4-dihydroxynaphthalene or dihydroxyanthracene, and 2-phenyl.- or tetramethoxy-alpha-naphthol. The Specification as open to inspection under Sect. 91 includes also the subjectmatter of Specification 500,826, as open to inspection under Sect. 91. This subjectmatter does not appear in the Specification as accepted.
Patent GB-347559-A (GB)
Title: Improvements in or relating to luminous electric discharge tubes
IPC: H01J61/28
Filed: 1930-08-18
Abstract: 347,559. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Aug. 18, 1930, No. 24664. Convention date, Oct. 19, 1929. Addition to 316,611, [Class 39 (i), Electric lamps, Arc &c.]. [Class 39 (i).] In apparatus of the type described in the parent Specification the switching-device controlling the heater for the gas-emitting substance is connected in parallel with the discharge-tube or with the primary of the transformer operating the discharge tube. The switching-device may be similar to that described in the parent Specification. The Figure shows a modification in which the switching- device consists of a U-tube 25 containing mercury and terminating in a bulb in which is placed a heating-coil 24. The tube 25 is connected to the coil 12 which heats a container 16<1> for the gasemitting substance and the coil 24 is connected across the leads 3 supplying current to the tube 1. If the voltage in the tube 1 falls off the coil 24 cools the mercury and closes the circuit of the coil 12 through the contacts 60. A bimetallic strip may be substituted for the U-tube 25. The switching device may, in addition, control the connection of a gas supply reservoir to the tube 1.
Patent GB-1419414-A (GB)
IPC: F16H57/033
Filed: 1973-05-23
Abstract: 1419414 Change-speed gear HERWAYTHORN SA 23 May 1973 [25 May 1972] 24714/73 Heading F2D A kit of parts which may be assembled in various ways to produce, e.g. transfer gears with variable ratio for a motor vehicle, complex gear trains and simple drive disconnection clutches, and having multiple input and output points arranged in alternative positions as required, comprises a base unit A, Fig. 1, with an upper, and also, if desired, an identical flanged side opening 6, and side openings 5 for bearings of shafts such as 2, 3; a unit B, Fig. 2, having upper and lower flanged openings 6 matching those, 6, of unit A, and side openings for bearings of a single shaft such as 8, carrying a toothed wheel for meshing a wheel in the base unit A; a side unit C, Fig. 3, for attachment to a side opening 5 and, as shown, carrying a shaft 10 with external coupling flange 11 and an internal dog 12 for clutching a dog on the end of say a shaft 2, and operable by an externally controlled shift fork (Fig. 4, not shown); a side unit D, Fig. 5, for attachment to a side opening 5 and carrying a simple direct coupling flange; a similar side unit E, Fig. 6, not shown, in which the coupling flange carries a gear-wheel driving a speedometer-fitting attached to the side of the unit; two types of shaft such as H, I, Fig. 16, the latter having a dogged and a splined end suitable for connection to the side units C, D or E; and closure members F, G covering the flange opening 6 and side openings 5, not being used. An example of an assembled transfer gear, Fig. 16, comprises a base unit A with a declutchable side coupler C, and a simple side coupler E with speedometer take-off, both driven from the two-speed shaft I; an attached unit B with input coupler D; and covers F, G, attached to the unused exits. A single unit C may be used as a simple shaft clutch. Other and more complex assemblies, one with fifteen gear trains, are shown.
Patent GB-840127-A (GB)
Title: Bonded fibrous products and preparation thereof
IPC: D04H1/64
Filed: 1957-08-06
Abstract: A bonded non-woven fibrous product comprises fibres which are distributed in random array and are predominantly non-proteinaceous fibres which are incapable of felting and are bonded together by a binder, the major portion of which consists of (1) a water-insoluble linear polymer of monoethylenically unsaturated monomeric units comprising at least 3% by weight of a compound of formula <FORM:0840127/IV(a)/1> where R is a hydrogen atom or a methyl group, R1 is a straight or branched chain alkylene group having 2 to 6 carbon atoms or a group having the formula -(CnH2nO)mCnH2n-where n is 2 or 3, m is 1, 2 or 3 and A is -O- or -NH-, and (2) an aminoplast, said polymer being cross-linked to an insoluble and infusible condition.  Specified monomers are b -hydroxyethyl acrylate, b -hydroxyethyl methacrylate, N - b  - hydroxyethyl acrylamide, N - b - hydroxyethyl methacrylamide, N-b -hydroxypropyl methacrylamide, N-b -hydroxyprooyl acrylamide, b  - hydroxyethoxyethyl acrylate, b  - hydroxyethoxyethyl methacrylate, g  - hydroxypropyl acrylate, g -hydroxypropyl methacrylate, b -hydroxypropyl acrylate, b -hydroxypropyl methacrylate, 6-hydroxyhexyl methacrylate, 6-hydroxyhexyl acrylate.  Specified aminoplasts are N,N-ethyleneurea, N,N1-ethyleneurea, N,N1-dimethylurea, N,N1-diethylurea, N,N1 - dimethoxymethylurea, N,N - dimethoxymethylurea, N,N1-diethoxyethylurea, tetramethoxymethylurea, tetraethoxyethylurea, N,N-dimethylmelamine and dimethoxymethylmonomethylolmelamine. Examples disclose binder compositions comprising emulsion copolymers of b -hydroxyethyl acrylate and butyl acrylate; n-butyl acrylate with b -hydroxypropyl methacrylate; ethyl acrylate, methyl methacrylate and N-b -hydroxy ethylmethacrylamide; ethyl acrylate and N-b -hydroxy-t-butyl acrylamide; n-butyl acrylate and b -hydroxypropyl methacrylate; b -hydroxy-ethyl acrylate and n-butyl acrylate; and containing also dimethylol N,N1 - ethyleneurea, dimethoxy - methyleneurea, or trimethylol - melamine.  Optional additives are wetting-agents such as octylphenoxyethoxysodium sulphate, or the sodium salt of dioctylsuccinate; foaming agent, such as sodium oleate; defoaming agents such as octyl alcohol or silicone compounds; catalysts such as ammonium chloride, diammonium phosphate or the hydrochloride of monoethanolamine, of diethanolamine, of triethanolamine or of diethylamine; and an emulsifier and dispersing agent such as t-octylphenoxy-polyethoxyethanol.
Patent GB-706306-A (GB)
Title: Improvements in ophthalmic diagnostic instruments
IPC: A61B3/024
Filed: 1952-10-02
Abstract: 706,306. Sight-testing apparatus. LEA, G. Oct. 2, 1952, No. 24729/52. Class 97(1) An ophthalmic diagnostic instrument for charting the blind spot and surrounding area of the eye, comprises a stand 3 for supporting the patient's head, a stand 7 carrying a disc 15 on the rear face of which is mounted a chart 17, a mirror 30 on the front of the disc constituting a fixation centre and a ribbon 22 on the front of which is mounted a stimulus or retinal exciting source 28. The stimulus shown is a bright stud-like object, illuminated against the black background of the disc by a lamp 33. Alternatively it may be a small self-luminous object. The ribbon 22 passes over pulleys 21 and is fixed at the back to plates 23 which slide on rails 20 and are spaced apart by rods 25. The ribbon, plates and stimulus may be moved diametrically across the disc and the plates 23 are so arranged that they indicate the position of the stimulus on the front of the disc, this position being marked on the chart by inserting a pencil into the diametrically opposite plate 23. Further, the ribbon assembly may be rotated about the centre of the chart by means of the handle 27.
Patent GB-1447916-A (GB)
Title: Process and catalyst for the polymerization of alpha-olefins
IPC: C01G23/02
Filed: 1974-06-05
Abstract: 1447916 Titanium halide polymerization catalyst TOHO TITANIUM CO Ltd 5 June 1974 [5 June 1973] 24897/74 Heading C3P Alpha olefins are polymerized in the presence of (a) an organoaluminium compound and (b) a titanium halide component obtained by milling (i) a titanium halide in a valency below 4, (ii) and alpha, betaunsaturated carboxylic acid ester and (iii) a silicon compound which is an organosilane or a polysiloxane. Optionally, oxygen may be present. Examples refer to the homopolymerization of propylene or block copolymerization (propylene-b-ethylene-co-propylene) in solution or in a fluidized bed of polypropylene using catalysts typically comprising (a) Et 2 AlCl and (b) the product of milling (i) TiCl 3 .1/3AlCl 3 , (ii) methyl methacrylate, methyl crotonate, methyl cinnamate, or diethyl maleate, and (iii) dimethyl polysiloxane, methyl chloropolysiloxane and tetraethylsilicate, and in some eases in the presence of oxygen or hydrogen.